CN103556576A - Detachable compound hollow internal mould for concrete hollow box girder in roads and bridges - Google Patents
Detachable compound hollow internal mould for concrete hollow box girder in roads and bridges Download PDFInfo
- Publication number
- CN103556576A CN103556576A CN201310556854.3A CN201310556854A CN103556576A CN 103556576 A CN103556576 A CN 103556576A CN 201310556854 A CN201310556854 A CN 201310556854A CN 103556576 A CN103556576 A CN 103556576A
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- China
- Prior art keywords
- hot melt
- case beam
- light
- formed body
- polyphenyl foam
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004567 concrete Substances 0.000 title claims abstract description 21
- 150000001875 compounds Chemical class 0.000 title abstract 5
- 239000006260 foam Substances 0.000 claims abstract description 51
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 42
- 239000012943 hotmelt Substances 0.000 claims description 37
- 239000002131 composite material Substances 0.000 claims description 18
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 7
- 230000008018 melting Effects 0.000 abstract 6
- 238000002844 melting Methods 0.000 abstract 6
- 239000004698 Polyethylene Substances 0.000 abstract 5
- 238000005187 foaming Methods 0.000 abstract 5
- 229920000573 polyethylene Polymers 0.000 abstract 5
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000010276 construction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009415 formwork Methods 0.000 description 3
- 239000011513 prestressed concrete Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- 241001314948 Bursaria incana Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Abstract
The invention discloses a detachable compound hollow internal mould for a concrete hollow box girder in roads and bridges. The detachable compound hollow internal mould comprises a box girder, a poly-phenyl foaming formed component, a PE (Poly Ethylene) thin-walled tube, a small hole, a hot melting ring, a lead, a hot melting dragging cable and a de-molding dragging cable, wherein the poly-phenyl foaming formed component is arranged in the box girder; the PE thin-walled tube as a stressed part is arranged in the poly-phenyl foaming formed component; the poly-phenyl foaming formed component and the PE thin-walled tube are formed by combining subsection units; the hot melting ring is arranged in the poly-phenyl foaming formed component which is located on an end part; and the lead and the hot melting dragging cable are connected with the hot melting ring. The detachable compound hollow internal mould can be used for the hollow bodies in various shapes and sizes and the hollow bodies being 600-800mm high; the advantages of the detachable compound hollow internal mould are especially outstanding; a heating device is adopted and the poly-phenyl foams are melted by the hot melting ring, so that the PE thin-walled tube is separated from concrete; the poly-phenyl foams and the PE thin-walled tube are combined in sections, so that the assembling and disassembling are simple; the weight is light; and the transition is convenient and requires no large machine.
Description
Technical field
The present invention relates to the interior hollow template structural member that native box girder construction is used, be specifically related to the detachable composite hollow internal mold of concrete hollow case beam in a kind of road and bridge.
Background technology
At present, across footpath prestressed concrete box girder, be widely used in bridge, railway, highway etc. greatly.Its job practices is also with rapid changepl. never-ending changes and improvements, for guaranteeing that presentation quality adopts the construction of overall appearance formula steel form, but the construction of box girder inner formwork is the difference of various degrees also, application at present more several internal molds is: rigid backbone assembling wooden form, rubber internal mold and combined steel internal mold.By use for many years, find that existing inner mould technology exists the problem of the following aspects:
1. rigid backbone assembling wooden form and combined steel internal mold, when mounted, generally need 10h left and right, time-consuming.
2. rigid backbone assembling wooden form and combined steel internal mold, in form removal process, need personnel to enter in case beam and remove, the 5h left and right of expending time in, and in this process, need to the inner blowing of case beam, the personnel that prevent anoxia asphyxia in case beam.Therefore its form removal expends time in and increases cost.
3. rigid backbone assembling wooden form and combined steel internal mold, because the hollow height of case beam is generally within the scope of 600-1300mm, during form removal, personnel are difficult for entering in beam, and while removing combined steel internal mold, scene needs loop wheel machine, increases dismounting time and cost.
4. the geometry of rubber internal mold is by rubber mandrel moulding, and shape is wayward, differs larger with the geometry of design.
5. rubber internal mold, in concreting process, needs special messenger to keep an eye on, and notes supplementing in time air pressure, prevents that rubber bag tank internal gas pressure from declining, and affects case back board concrete thickness.So labor intensive.
6. rubber internal mold striking time is wayward, for avoiding concrete roof to cave in, is easy to artificially postpone striking time, occur that internal mold, with concrete binding phenomenon together, generally recycle number of times less, and external capsule easily weares and teares, if wearing and tearing, will produce bulging affects concrete formation.
Summary of the invention
The detachable composite hollow internal mold that the object of this invention is to provide concrete hollow case beam in a kind of road and bridge, solved existing greatly across the large hollow box girder inner formwork of footpath prestressed concrete, because of time-consuming the taking a lot of work that adopts rigid backbone assembling wood internal mold and combined steel internal mold to bring in installation, during dismounting, the problems such as operation inconvenience and loop wheel machine transportation; Wayward because of the shape that adopts rubber internal mold to bring in installation, while building, need special messenger to keep an eye on, the wayward and external capsule wearing and tearing of dismounting time reduce the problems such as number of times that recycle; Short to realize the duration, labour intensity is low, reduces the access times of big machinery (loop wheel machine), strengthens and recycles number of times.
The technical solution used in the present invention is: the detachable composite hollow internal mold of concrete hollow case beam in a kind of road and bridge, comprise case beam, polyphenyl foam formed body, PE light-wall pipe, small holes, hot melt ring, wire, hot melt haulage cable and demoulding haulage cable, described case beam inside is provided with polyphenyl foam formed body, and polyphenyl foam formed body inside is provided with the PE light-wall pipe as beaer;
Described polyphenyl foam formed body and PE light-wall pipe are that segmenting unit combines, the polyphenyl foam formed body unit that is positioned at end is provided with hot melt ring, on hot melt ring, be connected with wire and hot melt haulage cable, wire and hot melt haulage cable pass longitudinal small holes reserved in polyphenyl foam formed body and stretch out outside case beam, each end, PE light-wall pipe unit is connected with demoulding haulage cable and stretches out outside case beam, the height of described hot melt ring is less than the height of polyphenyl foam formed body, and is greater than the height of PE light-wall pipe.
As preferably, described polyphenyl foam formed body is carried out in factory in advance, generally usings 2m as a segment unit.
As preferably, described PE light-wall pipe is generally usingd 2m as a segment unit, and first segment unit is 1m.
As preferably, described composite hollow internal mold, if hollow larger in case beam, polyphenyl foam formed body adopts two groups of polyphenyl foams to be combined into interior hollow forming body, its inner beaer is two groups of PE light-wall pipes.
As preferably, described hot melt ring is arranged on polyphenyl foam end in advance, can do circularly, also can do ovalisation.
The present invention adopts polyphenyl foam, and every section of foam is divided into 4, and 4 are spliced to form integral body mutually, and polyphenyl foam is contacted with concrete, and as formed body hollow in case beam, PE light-wall pipe is positioned in foam, as internal mold beaer.Foam is in prefabrication, and production and installation are all very convenient, save the duration, and foam quality are light, does not need big machinery during construction.PE light-wall pipe connection segment, splices simple and conveniently, saves the duration equally.During the demoulding, heat hot fusing device, pulls hot melt ring, and fusing foam, realizes the demoulding, and the demoulding is simple and convenient, saves the duration.Take out polyphenyl foam and can continue to transport back factory's recovery processing, environmental pollution is few, reduces and takes material, is conducive to foam circulation and is beneficial to, and the PE light-wall pipe of taking-up, only need take good care of, and can continue next utilization.
The present invention adopts polyphenyl foam as its large hollow formed body, and PE light-wall pipe, can be for the hollow body of various shapes, size as its beaer, and for being highly the hollow body of 600-800mm, its superiority is particularly outstanding.Adopt heater, hot melt ring fusing polyphenyl foam, throws off PE light-wall pipe and concrete, polyphenyl foam and PE light-wall pipe segmentation combination, and mounting or dismounting are simple, lightweight, and transition is convenient, does not need big machinery.
Beneficial effect: great development period is moved towards in the railway of China, highways and streets in recent years, and construction of road and bridge is groundwork wherein, has adopted a large amount of greatly across footpath pre-stressed concrete hollow case beam in road and bridge.The internal mold of present hollow box beam generally adopts rigid backbone assembling wooden form, rubber internal mold and combined steel internal mold, and wherein large, the mounting or dismounting difficulty of combined steel formwork weight also needs large-scale haulage device, stores the shortcomings such as long in time limit, expense is high; There is the shortcomings such as labor strength is large, repeat usage is low, long in time limit, economic efficacy is poor in rigid backbone assembling wooden form; Rubber internal mold reuse number of times few, repeatedly use easy concentrated wear bulging, need special messenger to keep an eye on, the shortcoming such as striking time is uncertain.The present invention has overcome the problem that above-mentioned each class template exists, and can realize that the duration is short, labour intensity is low, do not need to use heavy mechanical equipment, striking time is clear and definite, concrete formation good.The present invention can wide, measure in large steel concrete road and bridge construction, while adopting cast-in-place or the large hollow box beam of precast concrete, promote the use of, from the production of composite hollow internal mold, to scene mounting or dismounting etc., industrial chain be can form, great economic benefit and good social benefit after promoting the use, can be created.
Accompanying drawing explanation
Fig. 1 is the internal construction schematic diagram of composite hollow internal mold of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is PE light-wall pipe node location partial schematic diagram of the present invention;
Fig. 4 is in knockout course of the present invention, pulls the formed effect schematic diagram of hot melt ring;
Fig. 5 is the composite hollow internal mold schematic diagram that the present invention adopts two groups of polyphenyl foams and PE light-wall pipe to combine;
Fig. 6 is construction flow chart of the present invention.
The specific embodiment
Below in conjunction with the specific embodiment and accompanying drawing, the present invention will be further described:
The present embodiment detachable composite hollow internal mold, as illustrated in fig. 1 and 2, the B-B sectional drawing that Fig. 1 is Fig. 2, the A-A sectional drawing that Fig. 2 is Fig. 1.Case beam 1 internal main will be by polyphenyl foam beaer, and PE light-wall pipe 8 forms, and hot melt ring 7 is placed in its end, and the wire and the hot melt haulage cable 12 that are connected with hot melt ring 7 are positioned in hole 6, run through whole road case beam 1.
Polyphenyl foam, as the interior hollow forming body of case beam 1, is combined by four polyphenyl foams 2,3,4,5, and assembly is reserved small holes 6, for placing wire and hot melt haulage cable 12, is connected with hot melt ring 7.PE light-wall pipe 8, as the beaer of composite hollow internal mold, is positioned over polyphenyl foam beaer inner.Wire, hot melt haulage cable 12 and 8 placements of PE light-wall pipe are sequentially: first assembled polyphenyl foam 2,3, PE light-wall pipe 8 is positioned in polyphenyl foam, wire and hot melt haulage cable 12 are positioned in reserving hole 6, finally by polyphenyl foam 4,5 assembling combination simultaneously.A demoulding haulage cable is fixed in every section of PE light-wall pipe end 13, and node diagram, as Fig. 3, is respectively demoulding haulage cable 9,10,11.For the polyphenyl foam of end, need reserve the position that hot melt ring 7 is placed, the height of hot melt ring 7 is less than the height of polyphenyl foam formed body, and is greater than the height of PE light-wall pipe 8, during assembling combination, hot melt ring 7 is positioned in polyphenyl foam.Wire and hot melt haulage cable 12 need be connected firmly with hot melt ring 7, guarantee that hot melt ring can be switched on and stressed.
The present embodiment detachable composite hollow internal mold, in sum, template installs, and treats that the concrete of case beam 1 reaches design strength.By the 7 energising heating of hot melt ring, hot melt ring can melt its polyphenyl foam around, pulls hot melt haulage cable 12, the polyphenyl foam of hot melt ring 7 fusing case beam 1 inside, whole road, and as Fig. 4, the space 14 of the formation of foam being melted.Hot melt ring 7 is taken out, whole polyphenyl foam formed body is separated with PE light-wall pipe 8, pulls successively respectively demoulding haulage cable 11,10,9, as Fig. 2 with machinery, whole PE light-wall pipe 8 pulls out one by one in case beam, finally realizes composite hollow internal mold stripping process.
The present embodiment detachable composite hollow internal mold, if hollow larger in case beam, can adopt two groups of polyphenyl foams to be combined into interior hollow forming body, and with two groups of PE light-wall pipes, as its beaer, as Fig. 5, its installation and demoulding principle are same as above.
Whole template installation and releasing process flow chart are as Fig. 6.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. the detachable composite hollow internal mold of concrete hollow case beam in road and bridge, it is characterized in that: comprise case beam, polyphenyl foam formed body, PE light-wall pipe, small holes, hot melt ring, wire, hot melt haulage cable and demoulding haulage cable, described case beam inside is provided with polyphenyl foam formed body, and polyphenyl foam formed body inside is provided with the PE light-wall pipe as beaer;
Described polyphenyl foam formed body and PE light-wall pipe are that segmenting unit combines, the polyphenyl foam formed body unit that is positioned at end is provided with hot melt ring, on hot melt ring, be connected with wire and hot melt haulage cable, wire and hot melt haulage cable pass longitudinal small holes reserved in polyphenyl foam formed body and stretch out outside case beam, each end, PE light-wall pipe unit is connected with demoulding haulage cable and stretches out outside case beam, the height of described hot melt ring is less than the height of polyphenyl foam formed body, and is greater than the height of PE light-wall pipe.
2. the detachable composite hollow internal mold of concrete hollow case beam in road and bridge according to claim 1, is characterized in that: described polyphenyl foam formed body is usingd 2m as a segment unit.
3. the detachable composite hollow internal mold of concrete hollow case beam in road and bridge according to claim 1, is characterized in that: described PE light-wall pipe is usingd 2m as a segment unit, and first segment unit is 1m.
4. the detachable composite hollow internal mold of concrete hollow case beam in road and bridge according to claim 1, is characterized in that: described polyphenyl foam formed body adopts two groups of polyphenyl foams to be combined into interior hollow forming body, and its inner beaer is two groups of PE light-wall pipes.
5. the detachable composite hollow internal mold of concrete hollow case beam in road and bridge according to claim 1, is characterized in that: described hot melt ring is for circular or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310556854.3A CN103556576A (en) | 2013-11-08 | 2013-11-08 | Detachable compound hollow internal mould for concrete hollow box girder in roads and bridges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310556854.3A CN103556576A (en) | 2013-11-08 | 2013-11-08 | Detachable compound hollow internal mould for concrete hollow box girder in roads and bridges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103556576A true CN103556576A (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310556854.3A Pending CN103556576A (en) | 2013-11-08 | 2013-11-08 | Detachable compound hollow internal mould for concrete hollow box girder in roads and bridges |
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| Country | Link |
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| CN (1) | CN103556576A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873527A (en) * | 2021-02-06 | 2021-06-01 | 广东三和管桩股份有限公司 | Manufacturing mold and method for supporting pile |
| CN113927713A (en) * | 2021-09-23 | 2022-01-14 | 江苏月生达机械制造有限公司 | Hydraulic internal mold system for prefabricated box girder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2652842A1 (en) * | 1975-05-30 | 1978-05-24 | Lorenz Kesting | Underground concrete sheathed oil storage tank construction - with three dimensionally arranged glass fibres initially mixed into concrete |
| CN201313342Y (en) * | 2008-11-07 | 2009-09-23 | 新七建设集团有限公司 | Easily-demoulded concrete formwork |
| CN201329613Y (en) * | 2008-07-02 | 2009-10-21 | 黑龙江农垦建工路桥有限公司 | Horizontal slide template |
| CN201609922U (en) * | 2010-02-05 | 2010-10-20 | 浙江永峰模具制造有限公司 | Pull type prefabricated small box girder iron core |
| CN202862350U (en) * | 2012-07-12 | 2013-04-10 | 中铁四局集团第一工程有限公司 | Foam truss-type internal mold combined structure for highway box grider |
| CN203569483U (en) * | 2013-11-08 | 2014-04-30 | 南京工业大学 | Assembling and disassembling type composite hollow internal model of concrete hollow box girder of road and bridge |
-
2013
- 2013-11-08 CN CN201310556854.3A patent/CN103556576A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2652842A1 (en) * | 1975-05-30 | 1978-05-24 | Lorenz Kesting | Underground concrete sheathed oil storage tank construction - with three dimensionally arranged glass fibres initially mixed into concrete |
| CN201329613Y (en) * | 2008-07-02 | 2009-10-21 | 黑龙江农垦建工路桥有限公司 | Horizontal slide template |
| CN201313342Y (en) * | 2008-11-07 | 2009-09-23 | 新七建设集团有限公司 | Easily-demoulded concrete formwork |
| CN201609922U (en) * | 2010-02-05 | 2010-10-20 | 浙江永峰模具制造有限公司 | Pull type prefabricated small box girder iron core |
| CN202862350U (en) * | 2012-07-12 | 2013-04-10 | 中铁四局集团第一工程有限公司 | Foam truss-type internal mold combined structure for highway box grider |
| CN203569483U (en) * | 2013-11-08 | 2014-04-30 | 南京工业大学 | Assembling and disassembling type composite hollow internal model of concrete hollow box girder of road and bridge |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873527A (en) * | 2021-02-06 | 2021-06-01 | 广东三和管桩股份有限公司 | Manufacturing mold and method for supporting pile |
| CN113927713A (en) * | 2021-09-23 | 2022-01-14 | 江苏月生达机械制造有限公司 | Hydraulic internal mold system for prefabricated box girder |
| CN113927713B (en) * | 2021-09-23 | 2022-07-29 | 江苏月生达机械制造有限公司 | Hydraulic internal mold system for prefabricated box girder |
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| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Yanhe Inventor after: Tang Jianzhong Inventor after: Lu Jinfeng Inventor after: Zhang Ying Inventor before: Li Yanhe Inventor before: Lu Jinfeng Inventor before: Zhang Ying |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI YANHE LU JINFENG ZHANG YING TO: LI YANHE TANG JIANZHONG LU JINFENG ZHANG YING |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140205 |